Copy the figures with punched holes and find the axes of symmetry for the following:
|S. No.||Punched holed figures||The axes of symmetry|
Express the following in exponential form:
|S. No.||Line(s) of symmetry||Other holes on figures|
In the following figures, the mirror line (i.e., the line of symmetry) is given as a dotted line. Complete each figure performing reflection in the dotted (mirror) line. (You might perhaps place a mirror along the dotted line and look into the mirror for the image). Are you able to recall the name of the figure you complete?
|S.No.||Question figures||Complete figures||Names of the figure|
The following figures have more than one line of symmetry. Such figures are said to have multiple lines of symmetry:
Identify multiple lines of symmetry, if any, in each of the following figures:
|S.No.||Problem Figures||Lines of symmetry|
Copy the figure given here:
Take any one diagonal as a line of symmetry and shade a few more squares to make the figure symmetric about a diagonal. Is there more than one way to do that? Will the figure be symmetric about both the diagonals?
Answer figures are:
Yes, there is more than one way. Yes, this figure will be symmetric about both the diagonals.
Copy the diagram and complete each shape to be symmetric about the mirror line(s):
State the number of lines of symmetry for the following figures:
(a) An equilateral triangle
(b) An isosceles triangle
(c) A scalene triangle
(d) A square
(e) A rectangle
(f) A rhombus
(g) A parallelogram
(h) A quadrilateral
(i) A regular hexagon
(j) A circle
|S.No.||Figure’s name||Diagram with symmetry||Number of lines|
What letters of the English alphabet have reflectional symmetry (i.e., symmetry related to mirror reflection) about.
(a) a vertical mirror
(b) a horizontal mirror
(c) both horizontal and vertical mirrors
(a) Vertical mirror - A, H, I, M, 0, T, U, V, W, X and Y
(b) Horizontal mirror - B, C, D, E, H, I, 0 and X
Give three examples of shapes with no line of symmetry.
The three examples are:
2. Scalene triangle
What other name can you give to the line of symmetry of:
(a) an isosceles triangle?
(b) a circle?
(a) The line of symmetry of an isosceles triangle is median or altitude.
(b) The line of symmetry of a circle is diameter.
Question 1: Which of the following figures have rotational symmetry of order more than 1:
Rotational symmetry of order more than 1 are (a),(b),(d),(e) and (f) because in these figures, a complete turn, more than 1 number of times, an object looks exactly the same.
Give the order the rotational symmetry for each figure:
|S.No.||Problem figures||Rotational figures||Order of rotational symmetry|